package cn.zust.ly.EyExample.Ez79;

import java.util.Scanner;

/**
 * Created by liy on 2016/11/25.
 */
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);


    }

    static boolean isPrime (long x) {
        if (x % 2 == 0) return false;
        for (int i = 3; i*i <= x; i += 2) {
            if (x % i == 0) return false;
        }

        return true;
    }
}
